Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633370 | Naphthalocyanine compounds, naphthalocyanine polymers and method for making | Hirofusa Shirai, Yuichi Kubota | 1997-05-27 |
| 5618930 | Phthalocyanine compound and method for making, nitro-substituted phthalocyanine compound, amino-substituted phthalocyanine compound, phthalocyanine-containing polymer and method for making, catalyst, and optical recording medium | Hirofusa Shirai, Toshiki Koyama, Kenji Hanabusa, Yuichi Kubota | 1997-04-08 |